Finding the Fourth Proportional to 1,867.98, 2,577.78 and 1,082.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,867.98 : 2,577.78 = 1,082.10 : x
2. Step 2: Convert to fraction form
   1,867.98/2,577.78 = 1,082.10/x
3. Step 3: Cross multiply
   1,867.98x = 2,577.78 × 1,082.10
4. Step 4: Simplify right side
   1,867.98x = 2,789,410.13
5. Step 5: Solve for x
   x = 2,789,410.13/1,867.98
6. Step 6: Final answer
   x = 1,493.28